Histone Modifications and Expression of Light-Regulated Genes in Arabidopsis Are Cooperatively Influenced by Changing Light Conditions

Here, we analyzed the effects of light regulation on four selected histone modifications (H3K4me3, H3K9ac, H3K9me2, and H3K27me3) and the relationship of these histone modifications with the expression of representative light-regulated genes. We observed that the histone modifications examined and g...

Full description

Saved in:
Bibliographic Details
Published in:Plant physiology (Bethesda) 2008-08, Vol.147 (4), p.2070-2083
Main Authors: Guo, Lan, Zhou, Junli, Elling, Axel A, Charron, Jean-Benoit F, Deng, Xing Wang
Format: Article
Language:English
Subjects:
Acetylation
Arabidopsis - genetics
Arabidopsis - physiology
Arabidopsis - radiation effects
Arabidopsis Proteins - genetics
Arabidopsis Proteins - metabolism
Arabidopsis thaliana
Biological and medical sciences
Chromatin
Darkness
Fundamental and applied biological sciences. Psychology
Gene Expression Profiling
Gene expression regulation
Gene Expression Regulation, Plant - radiation effects
Genes
Genes. Genome
Genetic loci
Histone Deacetylases - genetics
Histones
Histones - metabolism
Light
Luminous intensity
Molecular and cellular biology
Molecular genetics
Photosynthetic Reaction Center Complex Proteins - genetics
Plants
Promoter regions
RNA, Messenger - metabolism
Seedlings
Seedlings - growth & development
Seedlings - metabolism
Seedlings - radiation effects
Systems Biology, Molecular Biology, and Gene Regulation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Here, we analyzed the effects of light regulation on four selected histone modifications (H3K4me3, H3K9ac, H3K9me2, and H3K27me3) and the relationship of these histone modifications with the expression of representative light-regulated genes. We observed that the histone modifications examined and gene transcription were cooperatively regulated in response to changing light environments. Using H3K9ac as an example, our analysis indicated that histone modification patterns are set up very early and are relatively stable during Arabidopsis (Arabidopsis thaliana) seedling development. Distinct photoreceptor systems are responsible for mediating the effects of different light qualities on histone modifications. Moreover, we found that light regulation of gene-specific histone modifications involved the known photomorphogenesis-related proteolytic system defined by the pleiotropic CONSTITUTIVE PHOTOMORPHOGENIC/DE-ETOLIATED proteins and histone modification enzymes (such as HD1). Furthermore, our data suggest that light-regulated changes in histone modifications might be an intricate part of light-controlled gene transcription. Thus, it is possible that variations in histone modifications are an important physiological component of plant responses to changing light environments.
ISSN:0032-0889
1532-2548
1532-2548
DOI:10.1104/pp.108.122929